Chapter 25 – part 2 Review questions0

Chapter 25 – part 2 Review questions0 -...

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Chapter 25 part 2 Review Are you ready?
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1. Ancient cyanobacteria were very important in the history of life because they _____. A. were the first truly multicellular organisms B. were probably the first organisms to live on Earth C. produced atmospheric oxygen D. extracted heat from the atmosphere, cooling Earth E. are the oldest known archaea
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2. What evidence supports the hypothesis that mitochondria and plastids evolved from prokaryotic endosymbionts? A. They have a single circular chromosome similar to bacterial chromosomes. B. They have flagella similar to bacterial flagella. C. Their ribosomes are more like prokaryotic ribosomes than eukaryotic ribosomes. D. They divide by a process similar to meiosis. E. The first and third (A&C) responses are correct.
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3. Plants colonized land in the company of _____ ; their symbiotic relationships still exist today. A. algae B. animals C. cyanobacteria D. fungi E. insects
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4. What evidence most strongly suggests that an impact by an asteroid or meteorite may have caused the
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This note was uploaded on 04/30/2011 for the course BIOL 1362 taught by Professor Loeblich during the Spring '08 term at University of Houston.

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Chapter 25 – part 2 Review questions0 -...

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